If you are trying to convert dBuV to dBmV there is a correction factor of "60".
The dBuV unit is typically used in most Asian countries and is simple to convert to dBmV.
EXAMPLE:
If a design (amplifier) calls for a +70 dBuV input with a +105 dBuV output, subtract "60" from each to convert to dBmV. This would be the same as a +10 dBmV input with a +45 dBmV output.
To convert dBmV to dBuV, simply add "60".
For the remainder of your question(s), you would need to have more information on what your customer wants and from where.
I would assume that he would want to know the exact measurement of existing RF carriers at specified spectrum bandedges at Trunk (or feeder) output cables prior to feeding the system. This could be at amplifier outputs or at combined modulator outputs. As little information has been supplied, this is just a vague guess on my side.
Good luck!
Re: Measuring DBMV on a SMATV System
Member #: 7190
Registered: 1996-2001
Posted:
483
Name:
Greg Tobin
Name:
Greg Tobin
Company:
Interactive Broadband Technical Services
Occupation:
HFC Engineer/Consultant
Location:
www.interactive-broadband.com
Personal:
Experience:
~45 years
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